1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Utility/RegularExpression.cpp b/contrib/llvm-project/lldb/source/Utility/RegularExpression.cpp
new file mode 100644
index 000000000000..026793462221
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Utility/RegularExpression.cpp
@@ -0,0 +1,42 @@
+//===-- RegularExpression.cpp ---------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/RegularExpression.h"
+
+#include <string>
+
+using namespace lldb_private;
+
+RegularExpression::RegularExpression(llvm::StringRef str,
+                                     llvm::Regex::RegexFlags flags)
+    : m_regex_text(std::string(str)),
+      // m_regex does not reference str anymore after it is constructed.
+      m_regex(llvm::Regex(str, flags)) {}
+
+RegularExpression::RegularExpression(const RegularExpression &rhs)
+    : RegularExpression(rhs.GetText()) {}
+
+bool RegularExpression::Execute(
+    llvm::StringRef str,
+    llvm::SmallVectorImpl<llvm::StringRef> *matches) const {
+  if (!IsValid())
+    return false;
+  return m_regex.match(str, matches);
+}
+
+bool RegularExpression::IsValid() const { return m_regex.isValid(); }
+
+llvm::StringRef RegularExpression::GetText() const { return m_regex_text; }
+
+llvm::Error RegularExpression::GetError() const {
+  std::string error;
+  if (!m_regex.isValid(error))
+    return llvm::make_error<llvm::StringError>(error,
+                                               llvm::inconvertibleErrorCode());
+  return llvm::Error::success();
+}